BRECO, BRECOFLEX timing belts. Timing belt types AT-DL BAT BATK

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Damon Fox
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BRECO, BRECOFLEX timing belts Timing belt types Properties Mechanical Positive fit, synchronous run Constant length, no post-elongation Low noise Wear resistant Low-maintenance Highly flexible

power-to-weight ratio Low pre-tension Low bearing load Permits large centre distances Permits large transmission ratios High degree of efficiency, max.

This type of belt is characterised by the larger tooth shear strength resulting from the larger tooth volume and the stronger tension members.

with synchronous pulleys with reduced or zero backlash Reduction of meshing impacts or shocks AT in DL version The DL timing belt (the belt is double-sided) is applied in the power transmission and

AT Construction BRECO, BRECOFLEX timing belts are manufactured of wear resistant polyurethane and high tensile steel cord tension members.

1 BRECO, BRECOFLEX timing belts Timing belt types Properties Mechanical Positive fit, synchronous run Constant length, no post-elongation Low noise Wear resistant Low-maintenance Highly flexible Positional and angular accuracy Can be crossed (see chapter Angular drives ) Fatigue resistant, low extension steel cord tension members Beltspeed up to 80 ms-1 Small build sizes Favourable power-to-weight ratio Low pre-tension Low bearing load Permits large centre distances Permits large transmission ratios High degree of efficiency, max. 98 % AT high capacity profile Further development of the T profile resulted in the AT profile. This type of belt is characterised by the larger tooth shear strength resulting from the larger tooth volume and the stronger tension members. Further advantages: Favourable tooth mesh Strengthened tension members for constant pitch Improved performance up to 50 % as compared to the T profile Precise transmission of movement in conjunction with synchronous pulleys with reduced or zero backlash Reduction of meshing impacts or shocks AT in DL version The DL timing belt (the belt is double-sided) is applied in the power transmission and transport technology. Multiple-shaft drives with different rotational directions can be realised with this timing belt. Full loadability on both tooth sides. AT Construction BRECO, BRECOFLEX timing belts are manufactured of wear resistant polyurethane and high tensile steel cord tension members. Both high quality materials combined form the basis for dimensionally stable and high resistance polyurethane timing belts. Polyurethane timing belts have a very high span rigidity. No post-elongation of the tension members is to be expected in continuous operation. Only under extreme load and after a short run-in time, the pre-tension of the belts might slightly reduce by the tension members settling, making a once-only re-tensioning of the timing belt unavoidable. The timing belts are temperature resistant with ambient temperatures from -30 C to +80 C. Applications close to the limit temperatures (<-10 C and >50 C), however, might require adapted dimensioning. For specific temperature ranges various belt materials are available. Please contact our distribution partner for this type of application. The production methods according to which BRECO, BRECOFLEX timing belts are produced, allow keeping within tight tolerances which guarantee a uniform load distribution during power transmission. These polyurethane timing belts are suitable for the transmission of high torques as well as the precise positioning and transport of various goods. Chemical: Hydrolysis resistant Resistant to aging Temperature resistant from -30 to +80 C (see information in the text Construction ) Tropical climate resistant Resistant against simple oils, fats and petrol Resistant to some acids and lyes For special areas of use we can produce all types of timing belts in materials, whose properties make it possible, to use belts in following areas: Foodstuff sector (TPUFD) Low temperature range from -30 C to +5 C (TPUKF) High temperaure range from +20 C to +110 C (TPUWB) Use in low aggressive environment (TPUAU) As alternative to the standard steel cord tension members, tension members in stainless steel and aramide are available. In the case of strong bending stress resp. tension load, timing belts with high flexible tension members (E) resp. with reinforced tension members could be produced. For further information about the resistance of polyurethane timing belts and available belt materials as well as alternativly tension member materials please contact our distribution partner. Curved teeth As a logical consequence of the demand for reducing running noise, a profile was developed which does without the conventional polygon effect. In addition to smooth running, the profile has, in comparison to the AT, a larger tooth face and is self-guiding in the preferred running direction. Special demands regarding smooth running properties and transmission precision Tight assembly dimensions Transport and transmission tasks Curved teeth with guiding track The BATK has ensued from the BAT. The timing belt is selftracking in both running directions due to the integrated guiding track. Special demands regarding smooth running properties and transmission precision Applications in the field of the linear and power transmission technology Tight assembly dimensions Preferred running ning direction AT-DL BAT BATK 6 7

Performance increase up to 60 %, running noise reduced by up to 10 db(a) and an increased longevity by: Tooth surface area increased by 70 % Uniform load/tension distribution Improved power

running characteristics. The performance range is that of the standard T or AT profiles minus the non toothed belt width.

2 Timing belt types Timing belt types ATP ATP high capacity profile Further increased performance, noise reduction and extension of the belts useful life led to the development of the ATP timing belt. The basic concept of the ATP profile provides the division of the trapezoidal tooth into two individual and load bearing teeth. Performance increase up to 60 %, running noise reduced by up to 10 db(a) and an increased longevity by: Tooth surface area increased by 70 % Uniform load/tension distribution Improved power dispersion Reduced polygon effect Small construction width Optimised tooth mesh Self-tracking belts Self-tracking belts are a combined construction of synchronous belts and V-belts with straight running characteristics. The performance range is that of the standard T or AT profiles minus the non toothed belt width. Where large lateral forces apply Running on synchronous pulleys without flanges (Also available in TK-version) ATK ATN The ATN timing belt is especially designed for the application in the transport technology. The flight fastening system in the belt tooth permits fast fitting and replacement of the flights individually manufactured for the conveying application concerned. Standard profile The timing belt with a trapezoidal profile according to DIN 7721 is regarded as the classical standard timing belt. For standard drive tasks For high bending stress (Also available in DL-version) ATN T ATN with V-groove The ATN timing belt is especially designed for the application in the transport technology and applied where no flanges on the pulleys and other guiding elements are possible for constructional reasons. Imperial profile Imperial pitches according to DIN/ISO 5296 are available in the following sizes: XL = 5,000 mm L = 9,000 mm H = 12,000 mm XH = 22,000 mm Applications in imperial units ATN with V-groove Imperial SFAT Offset teeth AT performance profile with two toothed tracks with a belt designed as SFAT. These toothed tracks are offset by half a tooth pitch in relation to each other. In combination with the accompanying synchronous pulleys, the SFAT is self-guiding. No flanges are required. Running on synchronous pulleys without flanges Where low noise is of the essence (reduced polygon effect) 8 9

3 Review of product and performance Review of product and performance AT3 ATS15 AT20, SFAT20 T10, L, H 5 kw 160 kw possible beyond 200 kw 30 kw Rotational speed approx min -1 Rotational speed approx min -1 Peripheral speed approx. 40 ms -1 Peripheral speed approx. 60 ms -1 Synchronous pulley from z=25 Synchronous pulley from z=18 Synchronous pulley from z=12 small paper-making machines, high-bay storage, lifting equipment heavy-duty drives, textile machinery, printing machinery, machine tools machine tools, Main and subsidiary drives, textile machines, printing machinery AT5 BAT15, BATK15 T5, XL T20, XH 15 kw 140 kw 5 kw up to approx. 100 kw Rotational speed approx min -1 Peripheral speed approx. 40 ms -1 Synchronous pulley from z=10 machine tools, pumps, textile machinery pumps, sanding machinery office machinery, do-ityourself units, positioning and regulating drives heavy construction machinery, paper machinery, pumps, compressors, textile machinery AT10, BAT10, BATK10, SFAT10, ATK10K6 ATP10 70 kw Rotational speed ca min -1 Peripheral speed ca. 60 ms -1 Synchronous pulley ab z= kw Peripheral speed approx. 60 ms -1 Remark: Special timing belt designs allow the rpm and peripheral speed parameters to be increased. construction machines, pumps, paper-making machines, compressors, textile machines, rollertable drives sanding machinery, power drives, machine tools SFAT15 ATP kw possible beyond 200 kw Rotational speed approx min-1 Peripheral speed approx. 50 ms-1 construction machines, pumps, paper-making machines, compressors 18 19

Polyurethane Timing Belts Belt performance table Belt

small small AT 5 GEN III AT 5 : 18 kw : 15 kw, Pumps,

III AT 10 : 87 kw : 70 kw Construction machines,

roller-table drives Construction machines,

100 kw, Textile machinery, Power drives Sanding

4 Polyurethane Timing Belts Belt performance table Belt performance table AT 3 GEN III AT 3 : 6 kw : 5 kw small small AT 5 GEN III AT 5 : 18 kw : 15 kw, Pumps, Textile machinery, Pumps, Textile machinery AT 10 GEN III AT 10 : 87 kw : 70 kw Construction machines, Pumps, Paper-making machines, Compressors compactors, roller-table drives Construction machines, Pumps, Paper-making machines, Compressors compactors, roller-table drives ATP 10 GEN III ATP 10 : 150 kw : 100 kw, Textile machinery, Power drives Sanding machinery, Power drives, 12

CONTI SYNCHROFLEX ATP 15 GEN III ATP 15 : possible beyond 220 kw Peripheral speed:

50 ms -1 Timing pulleys: from z=20 : possible beyond 200 kw Peripheral speed: 50

20 : possible beyond 2250 kw Timing pulleys: from z=18 : possible beyond 200 kw

Heavy-duty drives, Printing Machine, K 1,5; T 2; M; T 2,5 T 5 : 0,5 kw Timing

camera drives, Positioning drives Office machinery, home appliances, Positioning

Main and subsidiary drives, Printing machinery Heavy Construction machines,

5 CONTI SYNCHROFLEX ATP 15 GEN III ATP 15 : possible beyond 220 kw Peripheral speed: approx. 50 ms -1 Timing pulleys: from z=20 : possible beyond 200 kw Peripheral speed: approx. 50 ms -1 Timing pulleys: from z=20, high power drives Power drives, AT 20 GEN III AT 20 : possible beyond 2250 kw Timing pulleys: from z=18 : possible beyond 200 kw Timing pulleys: from z=18 Heavy-duty drives, Textile machinery, Printing machine, Heavy-duty drives, Printing Machine, K 1,5; T 2; M; T 2,5 T 5 : 0,5 kw Timing pulleys: from z=10 : 5 kw Timing pulleys: from z=10 Precision machine drives, film camera drives, Positioning drives Office machinery, home appliances, Positioning and regulating drives T 10 T 20 : 30 kw Timing pulleys: from z=12 : up to approx. 100 kw, Main and subsidiary drives, Printing machinery Heavy Construction machines, Paper-making machines, Pumps, Compressors compactors, Textile machinery Remark: Special timing belt designs allow the rpm and peripheral speed parameters to be increased. 13

CONTI SYNCHROFLEX Polyurethane Timing Belts Overall catalog

CONTI SYNCHROFLEX Polyurethane Timing Belts Overall catalog Registered trademark of ContiTech AG THE POWER OFAWELL-MESHED GROUP. 2 Polyurethane Timing Belts CONTI SYNCHROFLEX CONTI SYNCHROFLEX Timing Belts